alert udp $EXTERNAL_NET any -> $HOME_NET $DNS_PORT (msg: "[BIND] Unexpected error [RCODE] while resolving domain"; content: "unexpected RCODE"; classtype: suspicious-traffic; program: named; normalize: dns; threshold: type limit, track by_src, count 1, seconds 300; fwsam: src, 1 day; reference: url,wiki.quadrantsec.com/bin/view/Main/5000164; sid:5000164; rev:5;)
-- Main.Sagan-Wiki-Add - 2015-10-21
New revisions of 5000164 will be below...
alert udp $EXTERNAL_NET any -> $HOME_NET $DNS_PORT (msg: "[BIND] Unexpected error [RCODE] while resolving domain"; content: "unexpected RCODE"; classtype: suspicious-traffic; program: named; normalize; threshold: type limit, track by_src, count 1, seconds 300; fwsam: src, 1 day; reference: url,wiki.quadrantsec.com/bin/view/Main/5000164; sid:5000164; rev:6;)
-- Main.Sagan-Wiki-Add - 2016-8-30